Not the original commenter, but here is my take on it on Snow Leopard: I use QuickTime X a lot for its h.264 hardware acceleration. As of now, that's the only option you have if you want to play 1080p on Mac. Coupled with Perian, I think it solves the majority of playback issues with a rather simple user interface. Then I use MPlayer OS X Extended for its better support for MKV, subs, DTS, AC3, etc. And it has a very simple interface like the original QuickTime player (< X). So really, there's much less need for VLC on that platform...